Cooler or refrigerator for ice-machines



(N0 Model.) 2 sheetssheet 1.

W. EBERHARDT.

COOLER 0R REFRIGERATOB. POR 1GB MACHINES. No. 294,977. Patented Mar. 11, 1884.

'KNO Model.)- I I l 2 S-heet-Sheet 2.

- W. EBERHARDT. l

GOOLER 0R RBPRIGERATOR-POR ICE MACHINES.

' 10,294,971 Paten-ted Mar. 11, w34.

I UNiTED STATES PATENT ,OrEicE9 WILLIAM EBERHARDT, OF'ALLEGHENY, PENNSYLVANIA.

COOLER OR REFRIGERATOR FOR ICE-MACHINES.

SPECIFICATION forming part of Letters Patent No. 294,977, dated March 11, 1884.

Application filed December 3, 1883. (No model.)

lo @ZA wim/n, it may concern:

Be it known that I, WILLIAM EBERHARDT, a citizen of the United States, residing at Allegheny, county of Allegheny, State of Pennsylvania, have invented or discovered a new and useful vImprovenient in Coolers or Refrigerators for Ice-Machines, and Ido hereby declare the following to be a full, clear, concise, and eXact description thereof, reference being had to the accompanying drawin making a part of this speeication, in which-like letters indicating like parts- Figure lis a View in elevation of my improved pipejoint, looking` at the outside corner. Fig. 2 is a view of the joint, showing the two pipes in section and the winged thimble in elevation. Fig. 3 is 4a horizontal section through the joint. Fig. et is a horizontal section, showing the arrangement of the pipes and joint at the beginning and end of the coil. Fig; 5 is a side elevation of the same. Fig. 6 is a perspective view of the wingedthimble.` Fig. 7 is a perspective view of a coil of a cooling device. x i

My invention relates to an improved construction ot that part of ice-machines known as the refrigerator or cooler,7 and to the I method of cooling the re'rigerating-gas.

The object of my invention is to so construct the coil that 'all oi' the gas-pipe ina-y be surrounded by the water-pipe, and thereby utilize the whole ofthe cooling-surface of the gaspipe 5 and, in general terms, my invention consists in the construction and-combination of the parts of a cooler, all as more fully hereinafter described and claimed.

In the drawings, A .represents aicoil, which is of rectangular box shape, and is composed of two series of long sections of pipe arranged substantiallyparallel, one above another, forming the sides of the box, and two series of shorter sections, similarlyarranged, forming the ends of the box. Each row of the box is composed of the sections a a2, die., of the outer or circulating pipe, and of sections b b2,

&c., of the gascirculating pipe arranged within the water-pipes.

At the beginning, B, of the coil A,where the water and gas pipes are brought together, I arrange a coupling, D. rlhis coupling Deonsists of a shell, (Z, whose general shape is hemi spherical, and which is provided with the holes or openings d', d, and d3, internally screwthreaded, as shown. i

Into the opening d is screwed that piece of the fluid-pipe a which connects the coil with the water or fluid supply, and into the opening d2 is screwed a section of the pipe a', which forms the beginning of the fluid-pipe of the coil, and into this section c is placed a section of thel gas-pipe b', on the end of which has been previously screwed the thimble c, which is provided with aseries of -two or more wings or projections, c, which support the section b centrally within the section a', and allow the fluid to ilow by the thimble. The section b is screwed into an elbow, c, which is inserted into the shell d through the opening d", formed in the iiat part of the shell. Into the opposite end of this elbow c is screwed the section b of the gaspipe, which is connected with the gasreceiving reservoir. After the section b has been screwed into the elbow e, the opening d* in the shell is closed by the plug j", which is bored to iit the section b, and was placed in said section previous to its being screwed into the elbow e. The opening d, which is -internally threaded, is closed by the exteriorlythreaded plug g, which is provided with the lugs g', by which the plug can be turned by a suitable wrench.

The joints E E, &c., between the long and short sections of the water and gas pipes or the sides ot' the box, are formed as follows, (see Figs. l, 2, and 3:) Onto the end ot' the section b of the gas-pipe is screwed one of the thimbles c until it is entirely within the surrounding section a' of the water-pipe. Then onto the projecting end of the section b is screwed an elbow, e. Over this elbow is slipped the hemispherical shell h, which is provided with the threaded openings h and 11"', and is screwed onto the section a of the water-pipe. Onto another section, b2, ofthe gas- Apipe I screw another thilnble c, and then screw the section b2 into the elbow e. Over the section Zr is then slipped a section, a, of the water-pipe, and is screwed into the threaded opening hL of the shell. The opening h3 in the ilat part of the shell is closed by the screwplug ht. It will be noticed that the openings h and h'z are formed at right angles to each IOO other, and consequently the pipe-sections a.' and fo,\\'hicli are secured in these openings, are also at right angles to each other. On diametrically-opposite sides of the shells d and h are formed the projecting lugs Z, which, when a series of two or more coils are arranged one above another, act as separating-blocks, the lower projection of the upper joint resting on the upper projection of the lower joint, as clearly shown in Fig. T. As 'these projections are of equal length, it follows that the space between each row will be the same throughout the coil. On the end B of the coil A, where the water and gas pipes diverge, is arranged another coupling, similar in all respects to the coupling D. v

It will be observed that by constructing a cooler as above described the whole extent of the internal pipe is covered by the fluid circulating around it in the outer pipe.

rIhe shells d and 71r may be made without the opening in the Vllatside; but I prefer to make them with that opening, for convenience in manufacture and in putting the joints together, and also for inspecting the joints in the shell.

In using this cooler, theheated gas is forced into the end I3 and escapes at the end B; but the water is forced into the end l2, and in passing up through its pipes around the pipes gradually cools the gas, which, when it escapes from the end l), will be cooled down to the temperature of the water entering the coil at that point, and will be in a liquid con- I dition, and the water escaping from the end B', will have been heated to nearly the teniperature ofthe entering gas.

I claim herein as my inventionl. In a cooler or refrigerator, the combination of a series of two or more sections of pipe suitably connected and a series of two or more sections of smaller pipe suitably connected, arranged within the` lirst series, and entirely surrounded thereby at and around the joints, as well as throughout their lengths, substantially as set forth.

2. In a cooler or c'refrigeiaton a series of two or more sections of pipe suitably connected, in combination with a series of two' or more sections of smaller pipe suitably connected, arranged and supported centrally within the first series,and entirely surrounded thereby at and around the joints, as well as throughout their length, substantially as set forth.

3. I n a joint for the pipesections forming a cooler or refrigerator, a combination of ashell suitably connected with the water-pipe sections and an elbow located within said shell, and connected with the gas-pipe sections arranged within the water-pipes, substantially as set forth.

el. As a joint for the pipe-sections of a cooler or refrigerator, the heniispherical shell h, having threaded openings Il 712, the pipe-sections serewed into said openings, in combination with the elbow c', arranged within the shell, and the gas-,pipe sections arranged within the water-pipe sections and connected to said elbow, substantially as set forth.

5. As ajoint for the pipe-sections of a cooler or refrigerator, the heinispherical shellh, having a threaded opening, hf It, the waterpipe sections screwed into said openings, in combination with the elbow e', arranged within said shell, the gas-pipe sections arranged within the water-pipe sections and connected to the elbow, and-the winged thimbles c, substantially as set forth.

(i. As a coupling for uniting gas and water pipes to a coolervor refrigerator, a shell, d, having the threaded openings d dt di", the water-pipe sections screwed into the openings d' and di, in combination with the elbow e, located within said shell, the gas-pipe sections connected with said elbow, one ot' the sections being arranged within one of the. water-pipe sections, and the perforated plug f, surrounding the other gas-pipe section and screwing into the opening d", substantially as set forth.

7. As a joint or coupling for a cooler or refrigerator, a hemispherical shell having suitable threaded openings for the reception of pipe-connections, and an opening in its flat side, in combination with a plug or cover therefor, substantially as set forth.

8. 'lhe method of cooling gases, which consists in circulating the gas to be cooled in one direction through the pipes of a cooling apparatus, and in forcing the cooling medium in an opposite direction through pipes arranged outside of the gas-circulating pipes, substantially as set forth.

In testimony whereof I have hereunto set my hand.

WILLIAM lBlRHARDl.

Xlitnesses:

D inwix S. WoLco'r'r, R. H. llntrrrlnsnr.

IOO 

